package network

import (
	"encoding/json"
	"fmt"
	"net/http"
	"time"

	"github.com/wuko233/sysmonitord/internal/config"
)

type ConfigLoader struct {
	client *http.Client
}

func NewConfigLoader() *ConfigLoader {
	return &ConfigLoader{
		client: &http.Client{
			Timeout: 10 * time.Second,
		},
	}
}

func (l *ConfigLoader) LoadConfigs(urls ConfigUrls) (config.OfficialConfig, config.UserConfig, error) {
	var official config.OfficialConfig
	var user config.UserConfig
	// 1. 下载官方配置
	if err := l.fetchJSON(urls.OfficialConfigUrl, &official); err != nil {
		return official, user, fmt.Errorf("下载官方配置失败: %v", err)
	}
	// 2. 下载用户配置
	if err := l.fetchJSON(urls.UserConfigUrl, &user); err != nil {
		return official, user, fmt.Errorf("下载用户配置失败: %v", err)
	}
	return official, user, nil
}

func (l *ConfigLoader) fetchJSON(url string, target interface{}) error {
	resp, err := l.client.Get(url)
	if err != nil {
		return fmt.Errorf("请求失败: %v", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		return fmt.Errorf("非200响应: %d", resp.StatusCode)
	}
	return json.NewDecoder(resp.Body).Decode(target)
}